Administration officials assure us that a “high degree of confidence” is required that the person targeted by a drone is a terrorist. However, press reports have suggested that mere“patterns of behavior” and other vague criteria are actually being used to decide who to target in a drone strike. I am concerned that an already troublingly low threshold for execution on foreign soil may be even lower than we imagined.

The use of drones overseas may have become so convenient, operated as they are from a great distance, that far more “collateral damage” has become acceptable. Collateral damage is a polite way of saying “killing innocent civilians.” Is the ease of drone use a slippery slope to disregard for justice, and if so what might that mean for us as they become more widely used on American soil against American citizens?

This dramatic increase in the use of drones and the lowered threshold for their use to kill foreigners has tremendous implications for our national security. At home, some claim the use of drones reduces risk to American service members. But this can be true only in the most shortsighted sense. Internationally the expanded use of drones is wildly unpopular and in fact creates more enemies than it eliminates.